This site is an annex of the EE links site. It contains material too large to fit on the main site.

An AM Audio Processor. This article describes a top of the line AM Medium Wave audio processor that
definitely will make listening much more enjoyable. This article contains separate low pass, high pass, and notch sections. The notch filter is switchable for US,
European, and shortwave channel spacing. The low pass filter is switchable for 13, 8, and 3 kHz roll-off. The filter stages are fairly easy, with the only 1%
components being in the notch filter stage (which has a center frequency adjustment). There is also a "lite" version with a fixed 50 Hz high pass and 7.5 kHz low pass
roll-off. It is a very precise elliptical filter, and therefore absolutely must use 1% resistors. Capacitors are probably just as critical, but hopefully the builder
will get good results with 5%.

AM Loop Antenna. This is the ultimate AM loop antenna article. It is the only article that includes
the calculations - calculations that actually come out close to correct!

Does Radio Shack make a clone of the GE Super Radio 3? Radio Shack's Optimus 12-603 is one of the best AM receivers that they have made, but side-by-side comparisons of
the two make it clear that they have not copied the GE Super Radio 3. And the performance is not quite as good. I also have some hacks to improve it.

The GE Superradio Tech Page Just a quick rundown for the experienced electronics hobbyist on how to adapt the Superradio 2 to cover the expanded band, and how to improve both models. I also have re-drawn the schematics for the SR2 and SR3 from scratch - help me correct mistakes!!!

The FM Ceramic Filter Page A page dedicated to these unique components, and how they can be used to improve the performance of FM tuners.